Coupling plug with a cap



FIG. 1 is a perspective view taken from the top, front and right side of a coupling plug with a cap showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a right side elevational view thereof;

FIG. 8 is a sectional end view thereof taken on line A--A of FIG. 3;

FIG. 9 is a front elevational view of a coupling plug in the state when detaching a cap thereof;

FIG. 10 is a right side elevational view of a coupling plug in the state when detaching a cap thereof;

FIG. 11 is a front elevational view of a coupling plug in the state when detaching a cap thereof;

FIG. 12 is a right side elevational view of a cap in the state when detaching a coupling plug thereof; and,

FIG. 13 is a sectional end view thereof taken on line B--B of FIG. 12.

The elements of the claimed design are shown detached for clarity of illustration. 

The ornamental design for coupling plug with a cap, as shown and described. 